Man-on-man blocking is widely used in youth football. The other option, zone-blocking, can be complicated for youngsters to understand and lead to mistakes, while man-on-man blocking is easy to understand and execute. In the NFL and College Football, man-on-man is still seen, but zone blocking schemes are preferred. If a team has players who are really good at blocking, it can be enough for a man-on-man scheme to work well, while the coach's skills are more important for a zone-blocking scheme to run smoothly.